{"id":60,"date":"2025-12-17T20:38:14","date_gmt":"2025-12-17T12:38:14","guid":{"rendered":"https:\/\/nmsl.life\/?p=60"},"modified":"2025-12-17T20:38:14","modified_gmt":"2025-12-17T12:38:14","slug":"polarctf-misc-%e7%88%b1%e4%bd%a0","status":"publish","type":"post","link":"https:\/\/nmsl.life\/index.php\/mcqtss\/polarctf-misc-%e7%88%b1%e4%bd%a0\/","title":{"rendered":"polarctf-Misc-\u7231\u4f60"},"content":{"rendered":"\n<p>\u4e0b\u8f7d\u540e\u5f97\u5230202206MISC_PolarDN_CTF_.zip\uff0c\u89e3\u538b\u540e\u5f97\u5230cyndi-stego.png<\/p>\n\n\n\n<p>\u4f7f\u7528StegSolve\u6253\u5f00\u540e\u5207\u6362R\/G\/B Plane 0\u901a\u9053\u53d1\u73b0\u9876\u90e8\u5b58\u5728\u6570\u636e\uff0c\u521d\u6b65\u5224\u5b9a\u4e3aLSB\u9690\u5199\uff0c\u9700\u8981\u63d0\u53d6<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"486\" height=\"593\" src=\"https:\/\/nmsl.life\/wp-content\/uploads\/image-20251217200152612.png\" alt=\"\" class=\"wp-image-61\" srcset=\"https:\/\/nmsl.life\/wp-content\/uploads\/image-20251217200152612.png 486w, https:\/\/nmsl.life\/wp-content\/uploads\/image-20251217200152612-246x300.png 246w\" sizes=\"auto, (max-width: 486px) 85vw, 486px\" \/><\/figure>\n\n\n\n<p>\u9009\u62e9\u5bf9\u5e94\u901a\u9053\u9884\u89c8\u5e76\u5bfc\u51fa\u6570\u636e<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"714\" height=\"551\" src=\"https:\/\/nmsl.life\/wp-content\/uploads\/image-20251217200215038.png\" alt=\"\" class=\"wp-image-62\" srcset=\"https:\/\/nmsl.life\/wp-content\/uploads\/image-20251217200215038.png 714w, https:\/\/nmsl.life\/wp-content\/uploads\/image-20251217200215038-300x232.png 300w\" sizes=\"auto, (max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 984px) 61vw, (max-width: 1362px) 45vw, 600px\" \/><\/figure>\n\n\n\n<p>\u63d0\u53d6\u540e\u6570\u636e\u5982\u4e0b<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"558\" src=\"https:\/\/nmsl.life\/wp-content\/uploads\/image-20251217200231044-1024x558.png\" alt=\"\" class=\"wp-image-63\" srcset=\"https:\/\/nmsl.life\/wp-content\/uploads\/image-20251217200231044-1024x558.png 1024w, https:\/\/nmsl.life\/wp-content\/uploads\/image-20251217200231044-300x163.png 300w, https:\/\/nmsl.life\/wp-content\/uploads\/image-20251217200231044-768x418.png 768w, https:\/\/nmsl.life\/wp-content\/uploads\/image-20251217200231044-1536x836.png 1536w, https:\/\/nmsl.life\/wp-content\/uploads\/image-20251217200231044-2048x1115.png 2048w, https:\/\/nmsl.life\/wp-content\/uploads\/image-20251217200231044-1200x653.png 1200w\" sizes=\"auto, (max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 1362px) 62vw, 840px\" \/><\/figure>\n\n\n\n<p>\u5220\u9664\u524d\u4e24\u5217\u7684\u5185\u5bb9\u53ea\u4fdd\u7559\u7b2c\u4e09\u7b2c\u56db\u5217\uff0c\u5e76\u4f7f\u7528010\u4f5c\u4e3a16\u8fdb\u5236\u7c98\u8d34\u53d1\u73b0\u662fzip<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"587\" height=\"866\" src=\"https:\/\/nmsl.life\/wp-content\/uploads\/image-20251217200302471.png\" alt=\"\" class=\"wp-image-64\" srcset=\"https:\/\/nmsl.life\/wp-content\/uploads\/image-20251217200302471.png 587w, https:\/\/nmsl.life\/wp-content\/uploads\/image-20251217200302471-203x300.png 203w\" sizes=\"auto, (max-width: 587px) 85vw, 587px\" \/><\/figure>\n\n\n\n<p>\u540c\u65f6\u5728\u5e95\u90e8\u53d1\u73b0\u5b58\u5728\u7591\u4f3c\u5bc6\u7801<\/p>\n\n\n\n<p>\u5b58\u5728\u63d0\u793arfc4042\u7ecf\u8fc7\u67e5\u627e\u53d1\u73b0\u4e3autf-9\uff0c\u7f16\u5199\u811a\u672c\u8fdb\u884c\u89e3\u5bc6<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>pwd = b\",\\x9b\\xce\\xa6s)\\xd0\\xd2t\\x10\\x9c\\x0c'3\\x99\\xdc`r2\\x08\\r'1\\x010\\xdev2\\x90\\xcf&amp;\\xe3 \\xc4\"\n\n\ndef decode_utf9(data):\n    # 1. \u5c06\u5b57\u8282\u8f6c\u6362\u4e3a\u5b8c\u6574\u7684\u4e8c\u8fdb\u5236\u5b57\u7b26\u4e32\n    bits = \"\".join(f\"{b:08b}\" for b in data)\n\n    # 2. \u6bcf 9 \u4f4d\u53d6\u51fa\u4e00\u4e2a\u6570\u503c\n    decoded_chars = &#91;]\n    for i in range(0, len(bits) - 8, 9):  # \u6b65\u957f\u4e3a 9\n        nonet = bits&#91;i:i + 9]\n        if len(nonet) == 9:\n            decoded_chars.append(chr(int(nonet, 2)))\n\n    return \"\".join(decoded_chars)\n\n\nresult = decode_utf9(pwd)\nprint(f\"\u89e3\u5bc6\u7ed3\u679c\u4e3a: {result}\")<\/code><\/pre>\n\n\n\n<p>\u811a\u672c\u5982\u4e0a\uff0c\u89e3\u5bc6\u7ed3\u679c\u4e3aYougetit!passw0rd is LoveCynd1<\/p>\n\n\n\n<p>\u4f7f\u7528LoveCynd1\u89e3\u538b\u538b\u7f29\u5305\u5f97\u5230flag\uff1a<strong>flag{01e979f6dd21cd325e05fc1405e76bfd}<\/strong><\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e0b\u8f7d\u540e\u5f97\u5230202206MISC_PolarDN_CTF_.zip\uff0c\u89e3\u538b\u540e\u5f97\u5230cyndi-stego.png \u4f7f &hellip; <a href=\"https:\/\/nmsl.life\/index.php\/mcqtss\/polarctf-misc-%e7%88%b1%e4%bd%a0\/\" class=\"more-link\">\u7ee7\u7eed\u9605\u8bfb<span class=\"screen-reader-text\">\u201cpolarctf-Misc-\u7231\u4f60\u201d<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9,11,10],"tags":[14,15,12,13],"class_list":["post-60","post","type-post","status-publish","format-standard","hentry","category-ctf","category-misc","category-polarctf","tag-ctf","tag-image","tag-misc","tag-polarctf"],"_links":{"self":[{"href":"https:\/\/nmsl.life\/index.php\/wp-json\/wp\/v2\/posts\/60","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/nmsl.life\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/nmsl.life\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/nmsl.life\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/nmsl.life\/index.php\/wp-json\/wp\/v2\/comments?post=60"}],"version-history":[{"count":1,"href":"https:\/\/nmsl.life\/index.php\/wp-json\/wp\/v2\/posts\/60\/revisions"}],"predecessor-version":[{"id":65,"href":"https:\/\/nmsl.life\/index.php\/wp-json\/wp\/v2\/posts\/60\/revisions\/65"}],"wp:attachment":[{"href":"https:\/\/nmsl.life\/index.php\/wp-json\/wp\/v2\/media?parent=60"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nmsl.life\/index.php\/wp-json\/wp\/v2\/categories?post=60"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nmsl.life\/index.php\/wp-json\/wp\/v2\/tags?post=60"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}